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Oldham couplingIt is composed of two half couplings with grooves on the end faces and a middle disc with convex teeth on both sides.Because the convex teeth can slide in the groove, the relative displacement between the two shafts during installation and operation can be compensated.The material of the coupling parts can be 45 steel, and the working surface needs to be heat treated to increase its hardness. Flange couplings are rigid couplings.
The methods and techniques of correct and reasonable use of cross slide coupling:
The Oldham coupling is composed of two shaft sleeves and a central slider.The center slider is usually made of engineering plastics as a torque transmission element. In other cases, other materials, such as metal materials, can be selected.The central sliding block is connected with the shaft sleeves on both sides by 90° oppositely distributed clamping grooves on both sides, so as to achieve the purpose of transmitting torque.
The center sliding block and the shaft sleeve are matched with a slight pressure, which enables the coupling to run with zero clearance during the operation of the equipment.As the use time increases, the slider may lose its recoilless function due to wear, but the center slider is not expensive and easy to replace, and it can still play its original performance after replacement.
At the same time, the cross slider type coupling is often used in common motors, and can also be used to connect servo motors in individual occasions. The relative displacement is corrected by the sliding of the center slider during use.The slider couplings produced by different manufacturers on the market are also different.
The material of the coupling parts can be 45 steel, and the working surface needs to be heat treated to increase its hardness; Q275 steel can also be used when the requirements are lower, without heat treatment.In order to reduce friction and wear, oil should be injected from the oil hole of the middle plate for lubrication during use.Because the half-coupling and the intermediate disc form a moving pair and cannot rotate relative to each other, the angular velocity of the driving shaft and the driven shaft should be equal.